Turbo Valve Clearances

Benesesso · 03-12-2006, 10:50 PM

As part of my BHG repair, I checked all of the valve clearances. All of the intakes are right around .009" (.006-.010" spec).

The exhausts of 5 of the 6 cyls. are right at .013" (.008-.012" spec), while cyl. no.1 is .011" on both.

Looks like these engines don't have a tendency for the valves to sink into the seats and close-up the lash. I have a few extra shims left over from my valve-clearance/head-bolt torque check on my 1988 Turbo, so I think I'll go ahead and reset them all to the middle or low end of the spec.

This part of the job is fun, finding out what size shims are in there, figuring out what size is needed to close up the gaps, and making a chart to see how I can swap shims around.

Anyone have a bunch of shims for sale, before I let the dealer "have his way with me"?

03-12-2006, 10:50 PM	#1
Benesesso 3" Exhaust Join Date: Nov 2005 Location: Phoenix, AZ Posts: 145	Turbo Valve Clearances As part of my BHG repair, I checked all of the valve clearances. All of the intakes are right around .009" (.006-.010" spec). The exhausts of 5 of the 6 cyls. are right at .013" (.008-.012" spec), while cyl. no.1 is .011" on both. Looks like these engines don't have a tendency for the valves to sink into the seats and close-up the lash. I have a few extra shims left over from my valve-clearance/head-bolt torque check on my 1988 Turbo, so I think I'll go ahead and reset them all to the middle or low end of the spec. This part of the job is fun, finding out what size shims are in there, figuring out what size is needed to close up the gaps, and making a chart to see how I can swap shims around. Anyone have a bunch of shims for sale, before I let the dealer "have his way with me"? __________________ "You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein 1988 and 1990 Turbo Supras Last edited by Benesesso; 03-12-2006 at 10:52 PM.

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